The Federal Aviation Administration (FAA) implemented a ground stop for flights heading to Chicago O’Hare International Airport on August 11, 2026, lasting until 11:15 a.m. Central Time. A separate ground stop for flights destined to Midway Airport remained in effect until at least 11:30 a.m. CT. The FAA noted the possibility of extending these stops depending on ongoing storm conditions.
Severe Weather Impact Across Illinois and Indiana
A severe line of storms moved through Illinois and Indiana, generating wind gusts of up to 100 mph. The storms included brief tornadoes, heavy rainfall, and triggered flood warnings for the Chicago area. The high winds knocked down trees and
power lines across the region, prompting safety actions by aviation authorities.
Airport Operations and Travel Disruptions
During the storms, the Chicago Department of Aviation confirmed the control tower at Midway Airport was briefly evacuated for safety reasons. After the ground stop concludes at O’Hare, a ground delay program will remain active until 10 p.m. Central Time to manage traffic flow. Travel disruptions, including flight delays and cancellations, affected flights inbound to both O’Hare and Midway airports on August 11.
Authorities across Chicago continue monitoring storm activity as the region faces severe weather alerts impacting airport operations and traveler schedules.










